6 908 203 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
10071112128873032117999	23	73.1	2021-11-23 01:04:57

ECM

Digits	B1	Curves
25	50000	6 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1999-05-30	Phillip Reed	F4F15C52D2C90BDC	2888407
Verified (Factored)	2002-01-02	Bill Rozmiarek	F4F15C52D2C90BDC	819449

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-11-28	oodaira	001FE9850345552E	1	6859387	5	3

P-1 factors

Date	Factor	B1	B2
2021-11-23	10071112128873032117999	4000000	110000000

History

Date	User	Type	Result
2021-11-30	Seth_Tr	NF-PM1	B1=4000000, B2=414323910
2021-11-28	carlds	CERT	PRP Certification Proof certified good
2021-11-28	oodaira	C-PRP	M6908203/10071112128873032117999 : 001FE9850345552E PRP proof power = 8 PRP: Verified Proof certified good
2021-11-23	Seth_Tr	F-PM1	Factor: 10071112128873032117999 / (P-1, B1=4000000, B2=110000000, E=12)
2021-09-25	SRBase	NF	no factor from 2^71 to 2^72
2021-08-10	SRBase	NF	no factor from 2^70 to 2^71
2020-12-21	takahashi	NF	no factor from 2^69 to 2^70
2020-01-09	takahashi	NF-PM1	B1=600000, B2=12000000, E=12
2020-01-03	mnd9	NF	no factor from 2^68 to 2^69
2018-05-23	ramgeis	NF	no factor from 2^67 to 2^68
2016-04-01	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-06-21	VictordeHollander	NF	no factor from 2^65 to 2^66
2014-02-18	lycorn	NF	no factor from 2^64 to 2^65
2014-02-09	Nesowa	NF	no factor from 2^63 to 2^64
2011-11-21	James Heinrich	NF-PM1	B1=130000, B2=2665000, E=6